Diagnostic Ratio Analysis: A New Concept for the Tracking of Oil Sands Process-Affected Water Naphthenic Acids and Other Water-Soluble Organics in Surface Waters.,Environmental Science & Technology

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Diagnostic Ratio Analysis: A New Concept for the Tracking of Oil Sands Process-Affected Water Naphthenic Acids and Other Water-Soluble Organics in Surface Waters.
Environmental Science & Technology ( IF 10.8 ) Pub Date : 2020-02-07 , DOI: 10.1021/acs.est.9b05172
Pamela Brunswick ₁ , Dayue Shang ₁ , Richard A Frank ₂ , Graham van Aggelen ₁ , Marcus Kim ₃ , L Mark Hewitt ₂

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A diagnostic ratio forensics tool, similar to that recognized internationally for oil spill source identification, is proposed for use in conjunction with existing LC/QToF quantitative methodology for bitumen-derived water-soluble organics (WSOs). The concept recognizes that bitumen WSOs bear a chemical skeletal relationship to stearane and hopane oil biomarkers. The method uses response ratios for 50 selected WSOs compared between samples by their relative percent difference and adopted acceptance criteria. Oil sands process-affected water (OSPW) samples from different locations within a single tailings pond were shown to match, while those from different industrial sites did not. Acid extractable organic samples collected over 3 weeks from the same location within a single tailings pond matched with each other; as did temporal OSPW samples a year apart. Blind quality assurance samples of OSPW diluted in surface waters were positively identified to their corresponding OSPW source. No interferences were observed from surface waters, and there was no match between bitumen-influenced groundwater and OSPW samples, as expected for different sources. Proof of concept for OSPW source identification using diagnostic ratios was demonstrated, with anticipated application in the tracking of OSPW plumes in surface receiving waters, together with the potential for confirmation of source.

中文翻译：

诊断比率分析：跟踪地表水中油砂工艺影响的水环烷酸和其他水溶性有机物的新概念。

提出了一种诊断比率取证工具，该工具与国际上公认的漏油源识别工具类似，可与现有的LC / QToF定量方法结合使用，用于沥青衍生的水溶性有机物（WSO）。该概念认识到，沥青WSO与硬脂烷和hop烷油生物标志物具有化学骨架关系。该方法使用了50个选定WSO的响应率，通过样本之间的相对百分比差异和采用的接受标准进行比较。结果表明，来自一个尾矿池中不同位置的油砂工艺影响水（OSPW）样品匹配，而来自不同工业现场的油砂却没有。在3个星期内从一个尾矿池中的相同位置收集的可酸提取的有机样品相互匹配；就像每年一次的临时OSPW一样。在地表水中稀释的OSPW盲质量保证样品已被确定为对应的OSPW来源。没有观察到来自地表水的干扰，并且沥青污染的地下水和OSPW样品之间没有匹配，这是不同来源的预期。演示了使用诊断比率进行OSPW来源识别的概念验证，并有望应用于跟踪地表接收水中的OSPW羽状流，并具有确定来源的潜力。如不同来源所预期。演示了使用诊断比率进行OSPW来源识别的概念验证，并有望应用于跟踪地表接收水中的OSPW羽状流，并具有确定来源的潜力。如不同来源所预期。演示了使用诊断比率进行OSPW来源识别的概念验证，并有望应用于跟踪地表接收水中的OSPW羽状流，并具有确定来源的潜力。

更新日期：2020-02-10

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